Think about someone you love and the neurons in your brain will light up like a Christmas tree. But if you think about them again, will the same lights go off? Chances are: the answer’s no. And that could have big implications for the future of AI. A team of neuroscientists from the University of Columbia in New York recently published research demonstrating what they refer to as “representational drift” in the brains of mice. Per the paper: Although activity in piriform cortex could be used to discriminate between odorants at any moment in time, odour-evoked responses drifted over periods…

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